Error when integrate struts & hibernate

I’m new to struts framework. When i try to integrate struts2 & hibernate3.6, i got the below mentioned problems. Kindly solve the my problem, i used mysql database and tomcat server in this integeration.

Please friends answer ASAP...........

Struts Problem Report
Struts has detected an unhandled exception:

Messages: **Error! Please, check your JDBC/JDNI Configurations and Database Server avaliability.** at /addStudent - Method: com.tutorialspoint.struts2.AddStudentAction.execute() Could not open or inject a Hibernate Session in ValueStack: org.hibernate.MappingException: An AnnotationConfiguration instance is required to use

Messages: Error! Please, check your JDBC/JDNI Configurations and Database Server avaliability. at /addStudent - Method: com.tutorialspoint.struts2.AddStudentAction.execute() Could not open or inject a Hibernate Session in ValueStack: org.hibernate.MappingException: An AnnotationConfiguration instance is required to use

I would use Maven to manage your dependencies. But if you are going this route I would go back through that link you provided and make your list of dependencies look the same as what he had. Hibernate when you download it from their website has a version which includes dependencies. You can find a lot of the jars you need in there.